CN205047683U - Eight steel ball rzeppa universal joint - Google Patents
Eight steel ball rzeppa universal joint Download PDFInfo
- Publication number
- CN205047683U CN205047683U CN201520751417.1U CN201520751417U CN205047683U CN 205047683 U CN205047683 U CN 205047683U CN 201520751417 U CN201520751417 U CN 201520751417U CN 205047683 U CN205047683 U CN 205047683U
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- steel ball
- outer race
- star sleeve
- windows
- raceway groove
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Abstract
The utility model discloses an eight steel ball rzeppa universal joint, annular holder are located the clearance between bell shell inner wall and the star cover outer wall, even the opening in bell shell inner chamber surface has eight and the outer channel of steel ball assorted, star cover surface evenly open have eight with the interior channel of the corresponding setting of outer channel, it has eight windows corresponding with inside and outside channel to open on the annular holder, these eight windows, wherein four are great window, and other four are than small access window, and four great windows and four are than the alternate evenly distributed of small access window, all be provided with a steel ball in every window, steel ball and interior channel and outer channel contact cooperation. The utility model discloses bell shell, star cover channel size is less, and is great with the drive shaft spline reference circle size that the star cover is connected, and the structure is compacter, the quality is lighter, stronger, the supporting cost of transmission power ability is lower.
Description
Technical field
The utility model relates to auto parts and components field, particularly relates to a kind of rzeppa universal joint.
Background technique
The high-performance constant velocity shaft assembly of passenger car is made up of fixed joint, sliding universal joint and the jack shaft be connected between universal joint usually.
Usually, universal joint role transmits rotational power and moment of torsion between two rotating shafts connected with an angle each other.In the transmission shaft situation with little power transmission angle, use hook universal joint, flexible universal joint etc., and in the live axle situation of f-w-d vehicle with large power transmission angle, use constant velocity universal joint.Because also can with uniform velocity reliably transferring power when the angle of constant velocity universal joint even between live axle and driven shaft is very large, so constant velocity universal joint be mainly used in the axletree of independent suspension type f-w-d vehicle.When from the angle of axle, Y-type constant speed universal joint be arranged on axle towards one end of motor and the medial extremity of axle, and rzeppa universal joint be arranged on axle towards the other end of tire and the outboard end of axle.High performance constant velocity shaft assembly is except requiring, stably except transferring power, to also have reliable, the long-lived requirement of intensity.
Along with the anxiety of global resources and national governments are to the pay attention to day by day of environmental protection, the lightweight of automobile has become the inexorable trend of current automobile industry development.
Six traditional steel ball rzeppa universal joint steel numbers are relatively less, universal joint outer race, star sleeve channel dimensions are larger, and the jack shaft spline standard pitch circle size be connected with star sleeve is less, so six traditional steel ball rzeppa universal joint volumes and quality are all comparatively large, transmitting torque limited in one's ability.As reduced the physical dimension of six traditional steel ball rzeppa universal joints greatly, then intensity can not meet design requirement.
Model utility content
The purpose of this utility model solves the above-mentioned problems in the prior art exactly, there is provided a kind of outer race, star sleeve channel dimensions less, the live axle spline standard pitch circle size be connected with star sleeve is comparatively large, and the eight steel ball rzeppa universal joints that more compact structure, quality are lighter, stronger, the supporting cost of transferring power ability is lower.
For achieving the above object, technical solution of the present utility model is: a kind of eight steel ball rzeppa universal joints, comprises the outer race being provided with inner chamber, the star sleeve being arranged in inner chamber, annular retainer and eight uniform and steel balls of circular array; In the gap of described annular retainer between outer race inwall and star sleeve outer wall; The inwall of described outer race and the outer wall of described annular retainer form one group of spherical pair, the inwall of described annular retainer and the other one group of spherical pair of outer wall composition of described star sleeve, and two groups of spherical pairs are Spielpassung; Described outer race surface of internal cavity evenly has eight outer raceway grooves matched with steel ball, described star sleeve outer surface evenly have eight with the interior raceway groove of the corresponding setting of described outer raceway groove, described annular retainer has eight windows corresponding with inside and outside raceway groove; These eight windows, wherein four is larger window, and other four is comparatively wicket, and four larger windows are alternate compared with wicket with four to be uniformly distributed; Be provided with a steel ball in each window, described steel ball and interior raceway groove contact with outer raceway groove and coordinate.
There is throw of eccentric at the inwall sphere centre of outer race described above and the center of described outer race each outer fissure road track, and described star sleeve outer wall sphere centre has identical throw of eccentric with each interior channel center of described star sleeve.Throw of eccentric is identical is to be positioned on equidistant point by steel ball, thus ensures live axle constant-speed transmission power, but in actual applications, considers the throw of eccentric C affecting the inwall sphere centre of outer race and the center of outer race each outer fissure road track dynamically
1slightly larger than the throw of eccentric of star sleeve outer wall sphere centre and each interior channel center of star sleeve.
Star sleeve described above is connected with live axle by involute splines.
Outer race described above is connected with wheel hub by involute splines, and the screw thread of described outer race outermost end has locking function, ensures that wheel hub is not easy to come off.
Because the utility model have employed such scheme, adopt eight steel balls, when bearing identical torsion with six steel balls, the volume that steel ball can do is less, like this, the channel dimensions of outer race and the channel dimensions of star sleeve just can diminish, gap between outer race and star sleeve can diminish, it is less that outer race, star sleeve and annular retainer also can do, and live axle can be thicker, live axle spline standard pitch circle size becomes large, and universal joint overall structure is compacter, quality is lighter, transferring power ability is stronger.Four on annular retainer alternate equally distributed larger windows and four less windows, to ensure that described annular retainer has enough intensity.
Accompanying drawing explanation
Fig. 1 is axial cross section schematic diagram of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model will be further described.
As shown in Figure 1, the present embodiment comprises the outer race 1 being provided with inner chamber, the star sleeve 2 being arranged in inner chamber, annular retainer 4 and eight uniform and steel balls 3 of circular array.In the gap of described annular retainer 4 between outer race 1 inwall and star sleeve 2 outer wall.The inwall of described outer race 1 and the outer wall of described annular retainer 4 form one group of spherical pair, and the inwall of described annular retainer 4 and the other one group of spherical pair of outer wall composition of described star sleeve 2, two groups of spherical pairs are Spielpassung.Described outer race 1 surface of internal cavity evenly has the outer raceway groove matched with eight steel balls 3, described star sleeve 2 outer surface evenly have eight with the interior raceway groove of the corresponding setting of described outer raceway groove, described annular retainer 4 has eight windows corresponding with inside and outside raceway groove, these eight windows, wherein four is larger window, other four is comparatively wicket, and four larger windows are alternate compared with wicket with four to be uniformly distributed; Be provided with a steel ball in each window, described steel ball and interior raceway groove contact with outer raceway groove and coordinate.Further preferably, the inwall sphere centre O point of described outer race 1 and the center O of described outer race 1 each outer fissure road track
1there is throw of eccentric C
1, the center O of described star sleeve outer wall sphere centre O and described star sleeve each septal fossula road track
2there is identical throw of eccentric C
2, but in actual applications, consider and affect C dynamically
1slightly larger than C
2, R is the radius of outer race 1 each outer fissure road track, and r is each septal fossula road orbital radius.Further preferably, described star sleeve 2 is connected with live axle by involute splines.Described outer race 1 is connected with wheel hub by involute splines, and the screw thread of described outer race 1 outermost end has locking function.
The eight steel ball rzeppa universal joints that the present embodiment provides, compared to six traditional steel ball rzeppa universal joints, steel ball size is less, structure is compacter, quality is lighter, bearing capacity is higher, and supporting cost is lower.
Above-described embodiment is exemplary illustration principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar is improving, in protection domain of the present utility model the equivalent technologies that above-described embodiment carries out under spirit of the present utility model and category.
Claims (5)
1. eight steel ball rzeppa universal joints, is characterized in that: it comprises the outer race being provided with inner chamber, the star sleeve being arranged in inner chamber, annular retainer and eight uniform and steel balls of circular array; In the gap of described annular retainer between outer race inwall and star sleeve outer wall; The inwall of described outer race and the outer wall of described annular retainer form one group of spherical pair, the inwall of described annular retainer and the other one group of spherical pair of outer wall composition of described star sleeve, and two groups of spherical pairs are Spielpassung; Described outer race surface of internal cavity evenly has eight outer raceway grooves matched with steel ball, described star sleeve outer surface evenly have eight with the interior raceway groove of the corresponding setting of described outer raceway groove, described annular retainer has eight windows corresponding with inside and outside raceway groove; These eight windows, wherein four is larger window, and other four is comparatively wicket, and four larger windows are alternate compared with wicket with four to be uniformly distributed; Be provided with a steel ball in each window, described steel ball and interior raceway groove contact with outer raceway groove and coordinate.
2. eight steel ball rzeppa universal joints according to claim 1, it is characterized in that: there is throw of eccentric at the inwall sphere centre of described outer race and the center of described outer race each outer fissure road track, and described star sleeve outer wall sphere centre has identical throw of eccentric with each interior channel center of described star sleeve.
3. eight steel ball rzeppa universal joints according to claim 1 and 2, is characterized in that: described star sleeve is connected with live axle by involute splines.
4. eight steel ball rzeppa universal joints according to claim 3, described outer race is connected with wheel hub by involute splines, and the screw thread of described outer race outermost end has locking function.
5. eight steel ball rzeppa universal joints according to claim 1 and 2, described outer race is connected with wheel hub by involute splines, and the screw thread of described outer race outermost end has locking function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520751417.1U CN205047683U (en) | 2015-09-26 | 2015-09-26 | Eight steel ball rzeppa universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520751417.1U CN205047683U (en) | 2015-09-26 | 2015-09-26 | Eight steel ball rzeppa universal joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205047683U true CN205047683U (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520751417.1U Active CN205047683U (en) | 2015-09-26 | 2015-09-26 | Eight steel ball rzeppa universal joint |
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| CN (1) | CN205047683U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179499A (en) * | 2015-09-26 | 2015-12-23 | 耐世特凌云驱动***(涿州)有限公司 | Eight-steel-ball rzeppa constant velocity joint |
-
2015
- 2015-09-26 CN CN201520751417.1U patent/CN205047683U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179499A (en) * | 2015-09-26 | 2015-12-23 | 耐世特凌云驱动***(涿州)有限公司 | Eight-steel-ball rzeppa constant velocity joint |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |